Have "santize" mode where GitHub MCP tools box and sanitize text content according to contributor status

As a part of defense in depth, and as a variation on GitHub MCP lockdown mode, we should have an option to "box" or "soft label" or "spotlight" textual results returned from the GitHub MCP depending on contributor status

For example if a result is the title of an issue in a public OSS repo contributed by a non-write-contributor, it could be boxed or prefixed with text describing this, saying clearly the status of the contributor and that the content should be treated with caution.

My understanding is this will strongly encourage modern models tp treat this kind of boxed material with the protective gloves it deserves.

We should also strip all markdown comments etc from content in this mode